In this Tuesday, July, 19, 2016 photo released by Xinhua News Agency, a man helps a traffic policeman move away a barrier on a flooded road in Wanrong County, north China's Shanxi Province. China says dozens of people have died or gone missing since Monday in massive floods across the country's north. (Photo by Li Hongxiao/Xinhua via AP Photo)

In this Wednesday, July 20, 2016 photo, a child carries kettles through a flooded street with a woman in Tianjin, China. China says dozens of people have died or gone missing since Monday in massive floods across the country's north. (Photo by Chinatopix via AP Photo)

Residents ride on a heavy machinery at a flooded area in Taiyuan, Shanxi Province, China, July 20, 2016. (Photo by Reuters/Stringer)

A vehicle is seen passing a flooded street in Handan, Hebei Province, China, July 20, 2016. (Photo by Reuters/Stringer)

Residents ride on a vehicle at a flooded area in Beijing, China, July 20, 2016. (Photo by Reuters/China Daily)

Residents hold umbrellas as they wait to cross a street during heavy rainfall in Beijing, China, July 20, 2016. (Photo by Reuters/China Daily)

Automobiles are seen passing a flooded area during heavy rainfall in Beijing, China, July 20, 2016. (Photo by Reuters/China Daily)

A food deliveryman wades through a flooded street during a heavy rainfall in Shilipu, Chaoyang Road, Beijing, China, July 20, 2016. (Photo by Jason Lee/Reuters)

People are reflected on the wet floor of an underpass on a day of heavy rain in Beijing, China, July 20, 2016. (Photo by Thomas Peter/Reuters)

Tourists hold umbrellas as they stand in front of the Tiananmen Gate and a giant portrait of Chinese late Chairman Mao Zedong on a day of heavy rain in Beijing, China, July 20, 2016. (Photo by Thomas Peter/Reuters)

Tourists brace themselves against the rain as they cross the tunnel through the Tiananmen Gate on a day of heavy rain in Beijing, China, July 20, 2016. (Photo by Thomas Peter/Reuters)

Tourists hold umbrellas as they stand in front of the Tiananmen Gate and a giant portrait of Chinese late Chairman Mao Zedong on a day of heavy rain in Beijing, China, July 20, 2016. (Photo by Thomas Peter/Reuters)

A paramilitary police officer stands in front of a giant portrait of Chinese late Chairman Mao Zedong on a day of heavy rain in Beijing, China, July 20, 2016. (Photo by Thomas Peter/Reuters)

A man throws fish back to a flooded river in Beijing, China, July 20, 2016. (Photo by Reuters/China Daily)

People walk in a flooded underpass during a heavy rainfall in Beijing, China, July 20, 2016. (Photo by Reuters/China Daily)

Rescue vehicles drain water out from a flooded tunnel next to the Beijing West Railway Station during a heavy rainfall in Beijing, China, July 20, 2016. (Photo by Reuters/Stringer)

A flooded tunnel next to the Beijing West Railway Station is seen during a heavy rainfall in Beijing, China, July 20, 2016. (Photo by Reuters/China Daily)

Vehicles are trapped on a flooded street during a heavy rainfall in Beijing, China, July 20, 2016. (Photo by Reuters/China Daily)

A woman walks with an umbrella during heavy rain in Beijing on July 20, 2016. Some areas and streets in Beijing have started to flood over heavy rain. (Photo by Nicolas Asfouri/AFP Photo)

People play Pokemon Go on their mobile phones near the Sydney Harbour Bridge in Sydney, New South Wales, Australia, 20 July 2016. The Sydney Opera House put Pokemon lures in the area for two hours on 20 July, inviting players to come to the forecourt to search for the fictional creatures. Pokemon Go, a Global Positioning System (GPS) based augmented reality mobile game, was released in Australia, New Zealand and the USA on 06 July 2016. (Photo by David Moir/EPA)

An exiled Tibetan Buddhist monk runs to escape from rain during a special prayer meeting on the occasion of “Guru Purnima” in Bangalore, India, 19 July 2016. Guru Purnima is a festival traditionally celebrated by Hindus and Buddhists during the full moon day in the Hindu month of Ashad (July-August). (Photo by Jagadeesh N.V./EPA)

A tricycle makes its way along a flooded street in Beijing on July 20, 2016. Some areas and streets in Beijing have started to flood over due to heavy rain. (Photo by AFP Photo/Stringer)